A newf gets pulled over:
Cop: "Do you realize how fast you were goin?"
Newf: "No sir", as he looks at the cop awfuly strange.
The cop notices the newf looking at him quite strange and decides to ask what exactly he's looking at.
Newf: "Ah sir, looks like ya got a circle fly there"
Cop: "What the hell is a circle fly?"
Newf: "Ya know, when the horses wave their tales cause the flies are circling around there asses."
Cop: "Are you calling me a horses ass?"
Newf: "No sir, but you sure can't fool no circle fly"